S
M
T
W
T
F
S
28
89°
62°
29
86°
62°
30
88°
56°
1
88°
51°
2
88°
50°
3
90°
54°
4
89°
49°
5
85°
53°
6
87°
49°
7
87°
51°
8
89°
54°
9
87°
53°
10
91°
54°
11
88°
53°
12
85°
52°
13
83°
55°
14
79°
53°
15
75°
52°
16
74°
51°
17
76°
52°
18
77°
55°
19
81°
56°
20
83°
55°
21
85°
57°
22
83°
58°
23
78°
55°
24
78°
55°
25
79°
56°
26
91°
62°
27
86°
58°
28
85°
58°
29
84°
57°
30
84°
58°
31
83°
58°
1
83°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in San Antonio
San Antonio's July 2026 forecast shows daily high temperatures ranging from 74° to 91°, with overnight lows between 51° and 62°. The average high for July is 81° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in San Antonio. See also: August | September | October.